Science Worksheet: How Much Heat Do Things Hold printable pdf download

How Much Heat Do Things Hold?

Hypothesis: If something weighs 50 g, and is heated to 100 degrees C, then it holds just as

much heat as anything else with the same weight and temperature. After all, if something is

lighter, it must be larger to have the same total mass.

Materials:

Large pot of water heated to 100 degrees C .

Large pot of zero degree water, (some ice floating in the water)

Small plastic cups - For testing how much different items heat cold water.

50g of each substance (on a 30cm string); Scales for checking weight.

Copper, Iron, Lead, Tin, Aluminum, Plastic, Glass, Cement, Beans*, Soapstone, Water

Celsius thermometers (one goes to 100C, others to approx 50C),

The 50°Cs are the cold water cups in the experiment. Styrofoam cup for hot water.

Ladle for pouring 50ml cold water into test cups and hot water into a foam cup

At the end, * We'll do the test for the beans and the hot water.

Procedure:

1. Examine each of the items for size and mass, do they feel the same weight?

Do they all feel about the same weight?

Y N

2. You may check the weight with a scale and enter it on the Data Sheet in Mass-gm column

3. Place all the items into the hot water at100C; and let them Cook for 5 minutes..

4. As the items are cooking, Record temperature of HOT and cold water on Data Sheet.

5. Measure 50ml of icy water only and put 50ml of ice water into each of the plastic cups,

(be careful not to put any ice into the cups).

6. Place a thermometer into your cold water cup. Check temp.

7. After the samples have heated for five minutes, use the string to lift them from the

HOT water and carefully lower them into your icy water cup.

8. Wait another five minutes for the heat to move out of the hot items into the cold water.

You may gently swish the cups with the heavy items in them. RECORD final Temp!

9. Return your test item to the HOT water, Dump your "warm water" REPEAT 5-9

10. Watch your thermometer as you ladle 50ml of the HOT water into a Styrofoam cup of icy

water. After five minutes, record the final temperature on the Data Sheet.

11. Start with the smallest temperature rise on your Data Sheet, number the items 1 -12,

showing the order of heating – from a little to a lot.

Science Worksheet: How Much Heat Do Things Hold